export declare const is_binary: (content: string) => boolean;
export declare const magic_head: (buffer: ArrayBuffer, count?: number) => Uint8Array;
export declare const has_gzip_magic: (bytes: Uint8Array) => boolean;
export declare const has_hdf5_magic: (bytes: Uint8Array) => boolean;
export declare const has_ase_traj_magic: (bytes: Uint8Array) => boolean;
export declare const has_binary_magic: (bytes: Uint8Array) => boolean;
export declare const ext_of: (name: string) => string;
export declare const is_binary_data_extension: (ext: string) => boolean;
export declare const is_known_text_file: (basename: string) => boolean;
export declare const is_binary_payload: (filename: string, buffer: ArrayBuffer) => boolean;